Removing Soy Sauce Stains by Steaming Carpet
If the soy sauce stain that you need to remove is on carpet, then you will likely need to use a carpet steamer to clean the area. Carpet steamers are available for rent at most grocery stores for about $20 USD per day. The steamer help to remove soy sauce stains by simultaneously applying hot water to the site and vacuuming the steam and hot water immediatly through a suction tube to flush the aream and remove the soy sauce stain.
Furthermore, if the stain doesn't come out on the first try, then it may be necessary to apply dishsoap directly to the area and let it soak for a few hours minimum before attempting to use the steamer again to remove the soy sauce stain.
Removing Soy Sauce Stains Using Peroxide
If you have tried all of the above methods to remove the soy sauce stain, then it may be time for something more aggressive. This could be due to the type of soy sauce like Kikkoman. You may want to try soaking or dabbing the stain with household grade hydrogen peroxide.
Removing Soy Sauce Stains by Soaking Overnight in Dish Soap
Another useful option for removing soy suace stains is to soak the in dishsoap water overnight. The soaking of the stain in dishsoap allows ample time for the full impact of the soap to take place in removing the stain. After leaving the item soaking overnight, please be sure to follow steps one through 3 above one more time to completely remove the stain.
If it is not possible to soak the stain, then you may want to try applying the dishsoap directly to the area and using some type of steam cleaner to remove the soap from the soy sauce stained area.
Additional Options to Removing Soy Sauce Stains
One of the main challenges to remove soy sauce stains is when an item has already been washed and dried because that can set the stain. In these specific cases it may be necessary to try a like Mean Green or 409 and letting that soak on the stained area before removing with a sponge or steam cleaner.
Another "out there" way to get the stain out is to bleach the effected area and then dye the garment using household dye for the washer or having a professional do the work of removing the stain and then recoloring the area where you need to remove the soy sauce stain.